This document specifies a test method to determine the degree and rate of aerobic biodegradation
of hides and skins of different animal origin, whether they are tanned or not, through the indirect
determination of CO
2 produced by the degradation of collagen.
The test material is exposed to an inoculum (activated sludge from tannery wastewater) in an aqueous
medium. If there is not a tannery nearby then urban wastewater can be used as the inoculum.
The conditions established in this document correspond to optimum laboratory conditions to achieve
the maximum level of biodegradation. However, they might not necessarily correspond to the optimum
conditions or maximum level of biodegradation in the natural medium.
In general, the experimental procedure covers the determination of the degradation degree and
rate of the material under controlled conditions, which allows the analysis of the evolved carbon
dioxide produced throughout the test. For this purpose, the testing equipment complies with strict
requirements with regard to flow, temperature and agitation control.
All current amendments available at time of purchase are included with the purchase of this document. | File Size : | 1
file
, 3.7 MB |
| ISBN(s) : | 9780539011050 |
| Note : | This product is unavailable in Ukraine, Russia, Belarus |
| Number of Pages : | 34 |
| Product Code(s) : | 30378140, 30378140, 30378140 |
| Published : | 07/21/2020 |
| Same As : | BS EN ISO 20136:2020 |
